Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The description goes well beyond the annotations, which only state readOnlyHint=false, openWorldHint=false, destructiveHint=false. It reveals that the link is short-lived and one-time, that file bytes never pass through the AI or API, that the upload attaches automatically, and that the response status indicates whether the action executed or filed a proposal.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

All five sentences carry essential information: the purpose, the response contents, the direct-upload behavior, the verification step, and the approval-mode nuance. There is no fluff or repetition; each sentence earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given there is no output schema, the description adequately summarizes the response by mentioning the URL and the status field. It also covers the follow-up verification via get_event and the org-settings variation. Minor gaps remain around failure modes and exact response shape, but the essentials for calling the tool correctly are present.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description does not add parameter-specific meaning beyond the schema; it explains the overall flow but does not elaborate on eventId, request_id, intent, or org beyond what the schema already states.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description names a specific verb and resource: 'Get a short-lived ONE-TIME upload link for the event's logo or cover image.' It clearly distinguishes this tool from siblings by focusing on upload-link generation for media, which no other sibling covers.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description gives clear usage context: use it to obtain a media upload link, and verify the result afterwards with get_event. It also notes the organization-dependent behavior (immediate execution vs. proposal), which informs the agent about possible next steps. It does not explicitly name an alternative tool, but no direct alternative exists among siblings.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.